Nice setup. So do the sensors integrate into the VP2 or do they read on a seperate display?

One currently is set up as a 0.001" (thousandths) tipping bucket emulator currently connected to a NovaLynx counter. That one will be converted to Irrigation Mode and wired straight to the sprinkler/drip controller by the end of the rainy season.

The other one is in "It's raining" mode, and is wired to an input on our home automation system for control and notification when it starts raining.

You COULD connect the output of an RG-11 in 0.01" rain gauge mode to the RAIN input on a VP2 ISS. However, they are less accurate than a TB, and would require a separate power supply. The ISS won't supply enough power to run it.